Stylus-guiding attachment for sound-records.



. G. W. EBELING. I STYLUS GUIDING ATTACHMENT FOR SOUND RECORDS.

APPLICATION FILED MAY 20, 1913.

Patented Sept. 29, 191

Wis/212w 'NITED STATES Parana? onto i CHARLES NIT; EBELIENG, OF 'WHEELlNG, WEST VIRGINTA, ASSKG'N'QR 03? (JNEJEALF TD HARRISON V. BOGE 0.15 WHEELING, ill- HEFT VIRGINIA.

STYLUS-GUIDING ATTACHMENT FOR SOUND-RECORDS.

Specification of Letters Patent.

so, rare.

Application filed May cc, 1913. Serial lilo. "?G8,td5.

to ments in stylus guiding attachments for sound records, one object of the present invention, being the provision of means adjustably attached to the record whereby a selected point of the sound grooves will re- .15 ceive the point of the stylus, thusrendering the device especially adapted for use in connection With sound record carriers and motion picture projectors, and particularly with the structure as set forth in co-pending 2O applications of Harrison W Rogers filed February 7, 1913, Serial Nos. 746,890 and T r-6,891.

A further object of the present invention is .the provision of means which may be properly attached to the periphery of a disk signed for use upon any of such records, and in which the stylus guiding and startingportion thereof may be properly so adjusted longitudinally and traversely oi the record, so that the stylus after once positioned Will be directed to the desiredrs lected point of the sound groove thus rendering it unnecessary to manually rotate the record for a number of rotations before the introduction of the stylus to the groove or guide the stylus in the phonic groove up to the point of sound rendition, the present device being so designed that the particular point of the groove will be entered Without passage through the phonic groove up to the point of sound rendition.

A still further object of the present invention is the provision of a stylus guiding attachment that reinforces the periphery of the record and also by reason of the fact that the stylus guide is formed as a continuation of the phonic groove of the record, whereby the needle is properly guided thereto. It is also found that by forming the stylus receptacle as in the present inistance, a projection, the operator, even though operating in a dim or no light, where the device is operated in connection with a projector of a motion picture masound record, and which is particularly dechine may feel the position of the stylus upon the record'without any liability of damaging the record.

With the foregoing and other objects in View which will appear as the description proceeds, the invention resides in the com bin-ation and arrangement of parts and in the details of construction hereinafter de scribed and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of What is claimed Without departing from the spirit of the invention.

In the drawings l igure l is a plan View of a dish: record with the present attachinent applied thereto. Fig. 2 is an enlarged fragmentary plan view of a portion of the record and the attachment adjacent the stylus receiving portion of the attachment. Fig. 3 is a section taken on line 3-3 of Fig. 1. Fig. 4c is a section taken on line kt of Fig. 1.

Referring to all figures of the drawings, the numeral 1 designates disk sound record, provided with the usual sound groove 2, and the centering aperture 3. A second aperture l may or may not be provided for the reception of an auxiliary post, so that when the record is properly positioned upon the platform there will be no liability of a slip thereof when the record carrier is initially rotated or during the rotation thereof. 7

As particularly shown in Fig. 3, a carrying ring 5 of metal is provided, and is pro vided with the circumferential projection 6, whigh when the present device is disposed in operative relation to the disk 1, provides a peripheral recess 7 thereabout, such recess being of varying cross section according to the position of the member 5 upon the record, and as will presently appear.

The stylus gui ling and starting ring 8, is attached to the member 5 by means of screws 9, thus forming in reality therewith a clamp, for embracing the opposite sides oi? the periphery of the record 1, and thus when the screws 9 are properly tightened, permanently attaching the present device to the periphery of the dist: upon each face thereof and additionally reinforcing the dish against breakage.

stylus receiving and guiding channel of groove 11 is formed. in the projecting llll portion 10 of the member 8, the tongue 12 b01112" disoosed to )rovide the outlet of the groove adjacent the beveled portion 13 of,

the member 8, such beveled portion 13 be ing so disposed to properly guide the. stylus after leaving the outlet of the groove" or channel 11. to the selected point of the sound groove 9, as for instance at the arrow 15 in Fig. l. I In order to insure the direction of the needle along the beveled portion 13 of the member the portion of the disk adjacent the outlet as shown in Fig. 2, is roughened as an; 1%, and tends to guide the stvlus outwardl y.

From the foregoing description, 1t is evident that with the present device, a permanent means for attachment to a sound record and for guiding a stylus into a selected point of the sound groove is provi ed, and that the same after testing in a laboratory or otherwise, may be attached to the record and thus rende it unnecessury to readjust the device after once securing the same to the rec rd.

What is claimed is:

1. The combination with a sound record disk, of a stylus guiding device attached to the periphery ofthe disk and provided with a stylus guiding inner surface formed upon a line that is a contii'uuition of a selected convolution of the phonic groove of the record disk, and a tongue carried by the device and spaced from the guiding inner surface thereof to form a stylus receiving; channel.

2. The combination with. a sound record disk, of a curved stylus guiding device, in cluding a ring attached to the periphery of the disk, said ring being provided vvith a stylus receiving groove therein formed upon u curve that is a continuation of a selected convolution of the phonic groove of the record disk, the portion of the ring adjacent the outlet or the groove heingbeveled and forming a connecting medium between the groove of the ring and the selected convohr tion of the phonic groove.

3. The combination with a sound record disk, of 2rstylus guiding: device, including a ring clamped to and adjacent the periphery of the sound record disk and having a stylus receiving channel, the inner edge of the ring adjacent the outlet of the (.llzHiWl. being beveled to receive and guide (he stylus, said inner edgeleading, into a selected oint of the phonic groove of the record disk.

4:. The combination with a sound rec rd disk, of a stylus guiding device, including a ring clamped to and adjacent the periphery of the sound record disk, and a projecting tongue at one point of its inner edge providing a stylus receiving channel, the inner edge oi the ring adjacent the outlet or" llle channel leading into a selected point of the phonic fL'OOVQ, of the record disk.

5. The combination will] a sound re ord disk, of a stylus guiding: device, including; a ring clamped to and adjacent the pcriph cry of the sound record disk, and a tongue. carried by the ring and prmirliu; lhvrou'ilh. a stylus receiving channel, the inner edge of the ring adjacent the outlet of the channel being beveled to receive and guide the stylus into 'a selected point of the phonic groove of the-record disk.

6. The combination with a sound record disk, of a stylus guiding: dwice, in luding two rings, means for spacing; the rings apart to form a receptacle to receive the peripheral edge of the record disk. and. means {or clamping the rings upon the edge of the no 0rd disk, one of the rings being; providr-il, with a stylus directing groove adjacent its inner edge, the edge of the ring adjacent the outlet of the groove leading to a selected point of the phonic groove 05 the record disk.

7. The combination with a sound record disk, of a stylus guiding atta .:luuent therefor, including one member provided with a stylus guiding means, a second member disposed in spaced relation thereto, and means for securing the members together to embrace the periphery of the disk and adjustubly attach the atta hment, to the, disk.

ln testimony that l claim the foregoing as my own, I have hereto a flixed my Slflllb ture in the presence of two witnesses.

Cl-lAllLlllS W'. Fllllfiljllvu Wit-lies Snnmn W'nJsoN,

I. E. Snirson'. 

